IBM Presence detection Milan Stezka (stezkmil@fel.cvut.cz) - PowerPoint PPT Presentation

IBM - CVUT Student Research Projects IBM Presence detection Milan Stezka (stezkmil@fel.cvut.cz)

Introduction • Task: – Design and realize an extension to the Smart Kiosk project which will detect presence of a person. – Utilize the OPENCV library and a camera. – Part of the design will be a scenario taking advantage of this information. IBM - CVUT Student Research Projects 2

Implementation • Used technologies: – C++ (no virtual machine code bloat and required by OpenCV anyways...) – OpenCV (face detection, recognition and other image processing) – Nokia Qt (GUI) – Windows Sockets (client/server communication) – DirectShow (video overlay drawing) IBM - CVUT Student Research Projects 3

Task distribution • Server: – Receives image data from clients – Performs face detection and recognition – Holds user registration data – Sends recognition results to clients • Client: – Displays the results – Shows forms for login, registration, etc. IBM - CVUT Student Research Projects 4

Used face recognition in detail • Face detection: Viola and Jones (based on Haar wavelets) • Face recognition: – Eigenfaces – Principal Component Analysis (PCA) IBM - CVUT Student Research Projects 5

Does it work? • It works quite well :) (for a one semester long assignment, that is) – Reasonably stable lighting conditions are required – At least two people (I mean their face images) are required to create working face recognition data IBM - CVUT Student Research Projects 6